<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        div {
            float: left;
            margin-right: 5px;
        }

        div a {
            display: inline-block;
            width: 120px;
            height: 58px;
            text-decoration: none;
            background-color: pink;
            text-align: center;
            line-height: 58px;
            color: #fff;
            border-radius: 58px;
        }

        .b {
            background-color: orangered;
        }

        div .b:hover {
            background-color: skyblue;
        }

        .c {
            background-color: tomato;
        }

        div .c:hover {
            background-color: slateblue;
        }

        .d {
            background-color: orchid;
        }

        div .d:hover {
            background-color: springgreen;
        }

        .e {
            background-color: purple;
        }

        div .e:hover {
            background-color: yellow;
        }

        .f {
            background-color: #000;
        }

        div .f:hover {
            background-color: orange;
        }
    </style>
</head>

<body>
    <div>
        <a href="#" class="b">五彩导航</a>
    </div>
    <div>
        <a href="#" class="c">五彩导航</a>
    </div>
    <div>
        <a href="#" class="d">五彩导航</a>
    </div>
    <div>
        <a href="#" class="e">五彩导航</a>
    </div>
    <div>
        <a href="#" class="f">五彩导航</a>
    </div>
</body>

</html>